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Influence of microscopic defects on optical damage resistance of Zn:Fe:LiNbO 3 crystals
Author(s) -
Zhen X. H.,
Li Q.,
Xu Y. H.
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200510573
Subject(s) - doping , crystal (programming language) , zinc , analytical chemistry (journal) , materials science , infrared , chemistry , crystallography , optics , optoelectronics , metallurgy , physics , chromatography , computer science , programming language
Influence of defect structure on the infrared transmission spectra of OH ‐ in Zn:Fe:LiNbO 3 crystals with various ZnO concentration and different Li/Nb ratios was investigated. It indicates that above the Zn concentration threshold the OH ‐ absorptions bands successively shift from 3482cm ‐1 to 3504cm ‐1 and 3529cm ‐1 . The intensity of the 3504cm ‐1 band increases with ZnO concentration increasing. The optical damage resistance of the Zn:Fe:LiNbO 3 crystals increases rapidly when the ZnO concentration exceeds a threshold value. This result contributed to the site alteration from the Li sites to Nb sites due to Zn‐doping in crystal. © 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

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